46. In anaerobic conditions, skeletal muscle produces A) lactate and CO2 C) lact

Question

46. In anaerobic conditions, skeletal muscle produces A) lactate and CO2 C) lactate only B) ethanol and Co2 D) ethanol only 47. The reaction cycle that uses acetyl CoA to generate electron carrier molecules needed in the electron- transport chain is important for powering the cell. Which of the names below is not one of those commonly used to describe this reaction cycle? A) tricarboxylic acid cycle B) Krebs cycle C) oxaloacetic acid cycle D) citric acid cycle 48. Active transport requires the input of energy to move solutes against the electrochemical gradients. Which of the following is NOT a common way to perform active transport? (1.5 pts) A) Na*-coupled B) Light-driven C) ATP-driven D) GTP-driven 49. The citric acid cycle catalyzes the complete oxidation of the carbon atoms in acetyl CoA, leading to the production of A) 3 NADH, 2 FADH2 and 2 GTP B) 3 NADH, 1 FADH2 and 2 GTP C) 3 NADH, 2 FADH2 and 1 GTP D) 3 NADH, 1 FADH2 and 1 GTP 50. When during the citric acid cycle, GTP is produced. A) isocitrate is converted to a-ketoglutarate B) succinyl CoA is converted to succinate C) citrate is converted to isocitrate D) malate is converted to oxaloacetate

Explanation / Answer

46. The answer is C. Lactate only.
From one molecule of glucose during in the absence of oxygen, it converts into two molecules of lactic acid.

47. The answer is A. Oxlaoacetic acid cycle.

The rest three are same. As this cycle was discovered by Krebs, it is called Krebs cycle. As the first moleucule is citric acid, it is reffered as citric acid cycle. As the three cooh acid moleucles are more common it is reffered as tricarboxylic acid cycle.

48. The answer is A) Na+ coupled.

49. The answer is D) 3 NADH, 1 FADH2 and 1 GTP.

50. The answer is B) Succinyl Co A is converted to succinate.

Find the below TCA cycle...

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